ASTM D6205-12
(Practice)Standard Practice for Calibration of the James Static Coefficient of Friction Machine
Standard Practice for Calibration of the James Static Coefficient of Friction Machine
SIGNIFICANCE AND USE
5.1 This practice is used to calibrate the James Machine for determination of static coefficient of friction of polish surfaces in accordance with Test Method D2047. Over considerable time and repeated use the James Machine may tend to mechanical misalignment, giving self-evident, anomalous readings. The periodic accumulation and comparison of data generated by this practice provides an indication of when the machine is no longer within the calibration limits and can no longer be expected to provide accurate and reliable data.
5.2 Semi-automated James machines may perform an internal calibration/alignment test. These automated tests should be routinely run per the manufacturer's recommendation. If the repeatability tests of this practice indicate that the machine is out of calibration, the manufacturer should be contacted and their suggestions followed. Unqualified disassembly, modification, or adjustment may void the instrument warranty of semi-automated James Machines.
SCOPE
1.1 This practice covers the testing of the James Machine for repeatability of static coefficient of friction, relative to a standard reference interface consisting of the working surfaces of Borco2 board and standard leather shoe sole material, or a control polish film and standard leather shoe material. The practice provides basis data on the stability of the James Machine to ensure accurate static coefficient of friction determinations over time and repeated use and for determining if the James Machine is mechanically calibrated and properly aligned.
1.2 This practice is written specifically for James Machines with manual or motorized test table transport. Variations of this practice for the calibration of versions of James Machines which are semi-automated are obvious. Calibration practices suggested by the manufacturer of semi-automatic James Machines should be followed in preference to this practice.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
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Designation: D6205 − 12
Standard Practice for
Calibration of the James Static Coefficient of Friction
1
Machine
This standard is issued under the fixed designation D6205; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope D2825 Terminology Relating to Polishes and Related Mate-
rials
1.1 This practice covers the testing of the James Machine
D4103 Practice for Preparation of Substrate Surfaces for
for repeatability of static coefficient of friction, relative to a
Coefficient of Friction Testing
standard reference interface consisting of the working surfaces
2 E29 Practice for Using Significant Digits in Test Data to
of Borco board and standard leather shoe sole material, or a
Determine Conformance with Specifications
control polish film and standard leather shoe material. The
E178 Practice for Dealing With Outlying Observations
practice provides basis data on the stability of the James
Machine to ensure accurate static coefficient of friction deter- 2.2 Federal Specification:
minationsovertimeandrepeateduseandfordeterminingifthe KK-L-165C Leather, Cattlehide, Vegetable Tanned and
4
James Machine is mechanically calibrated and properly Chrome Tanned, Impregnated, and Soles
aligned.
3. Terminology
1.2 This practice is written specifically for James Machines
withmanualormotorizedtesttabletransport.Variationsofthis 3.1 Definitions:For general definitions, see Test Method
practice for the calibration of versions of James Machines D2047 and Terminology D2825.
which are semi-automated are obvious. Calibration practices 3.2 Definitions of Terms Specific to This Standard:
suggested by the manufacturer of semi-automatic James Ma- 3.2.1 Borco, n—special 5-ply vinyl drawing board cover.
chines should be followed in preference to this practice.
3.2.2 Borco/standard leather reference interface,
1.3 This standard does not purport to address all of the n—working interface consisting of the white side of the Borco
safety concerns, if any, associated with its use. It is the material, mounted as described in this practice, and the
responsibility of the user of this standard to establish appro- standard leather shoe sole material, mounted on a precision
priate safety and health practices and determine the applica- shoe pad as described in Section 7 of Test Method D2047.
bility of regulatory limitations prior to use.
3.2.3 control polish, n—a reference polish of known or well
established Static Coefficient of Friction, as determined by
2. Referenced Documents
repeated determinations using Test Method D2047 over a long
3
period of time and preferably by determinations on multiple
2.1 ASTM Standards:
James Machines.
D2047 Test Method for Static Coefficient of Friction of
Polish-Coated Flooring Surfaces as Measured by the
3.2.4 control polish/standard leather reference interface,
James Machine
n—working interface consisting of a dried film of control
polish, applied according to the procedures of Practice D4103
on standard vinyl composition tile, and the standard leather
sole material, mounted on a precision shoe pad as described in
1
This practice is under the jurisdiction of ASTM Committee D21 on Polishes
and is the direct responsibility of Subcommittee D21.06 on Slip Resistance. Section 7 of Test Method D2047.
Current edition approved Oct. 1, 2012. Published October 2012. Originally
3.2.5 standard test sequence, n—series of not less than eight
approved in 1998. Last previous edition approved in 2006 as D6205- 06. DOI:
consecutive Static Coefficient of Friction (SCOF) determina-
10.1520/D6205-12.
2
Borco is a registered trademark for a Danish product imported into the United
tions made on the Borco/standard leather interface or control
States by Sierra Group, a division of Wallace Leisure Products, Inc.Available from
polish/standard leather interface in accordance with this prac-
Papyro-TexA/S, DK-2730, Herlev, Denmark; distributed in NorthAmerica through
tice. The arithmetic average and standard deviation of one
drafting and office supply stores under the trade names “Borco,” “Vyco,” and
“Altex” board covers.
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
4
Standards volume information, refer to the standard’s Document Summary page on Available from Standardization Documents Order Desk, Bldg 4 Section D, 700
the ASTM website. Robbins Ave., Philadelphia, PA 19111-5094, Atten: NPODS.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D6205 − 06 D6205 − 12
Standard Practice for
Calibration of the James Static Coefficient of Friction
1
Machine
This standard is issued under the fixed designation D6205; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This practice covers the testing of the James Machine for repeatability of static coefficient of friction, relative to a standard
2
reference interface consisting of the working surfaces of Borco board and standard leather shoe sole material, or a control polish
film and standard leather shoe material. The practice provides basis data on the stability of the James Machine to ensure accurate
static coefficient of friction determinations over time and repeated use and for determining if the James Machine is mechanically
calibrated and properly aligned.
1.2 This practice is written specifically for James Machines with manual or motorized test table transport. Variations of this
practice for the calibration of versions of James Machines which are semi-automated are obvious. Calibration practices suggested
by the manufacturer of semi-automatic James Machines should be followed in preference to this practice.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory
limitations prior to use.
2. Referenced Documents
3
2.1 ASTM Standards:
D2047 Test Method for Static Coefficient of Friction of Polish-Coated Flooring Surfaces as Measured by the James Machine
D2825 Terminology Relating to Polishes and Related Materials
D4103 Practice for Preparation of Substrate Surfaces for Coefficient of Friction Testing
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E178 Practice for Dealing With Outlying Observations
2.2 Federal Specification:
4
KK-L-165C Leather, Cattlehide, Vegetable Tanned and Chrome Tanned, Impregnated, and Soles
3. Terminology
3.1 Definitions:For general definitions, see Test Method D2047 and Terminology D2825.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 Borco, n—special 5-ply vinyl drawing board cover.
3.2.2 Borco/standard leather reference interface, n—working interface consisting of the white side of the Borco material,
mounted as described in this practice, and the standard leather shoe sole material, mounted on a precision shoe pad as described
in Section 7 of Test Method D2047.
3.2.3 control polish, n—a reference polish of known or well established Static Coefficient of Friction, as determined by repeated
determinations using Test Method D2047 over a long period of time and preferably by determinations on multiple James Machines.
1
This practice is under the jurisdiction of ASTM Committee D21 on Polishes and is the direct responsibility of Subcommittee D21.06 on Slip Resistance.
Current edition approved June 1, 2006Oct. 1, 2012. Published June 2006 October 2012. Originally approved in 1998. Last previous edition approved in 19982006 as
D6205-98. - 06. DOI: 10.1520/D6205-06.10.1520/D6205-12.
2
Borco is a registered trademark for a Danish product imported into the United States by Sierra Group, a division of Wallace Leisure Products, Inc. Available from
Papyro-Tex A/S, DK-2730, Herlev, Denmark; distributed in North America through drafting and office supply stores under the trade names “Borco,” “Vyco,” and “Altex”
board covers.
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
4
Available from Standardization Documents Order Desk, Bldg 4 Section D, 700 Robbins Ave., Philadelphia, PA 19111-5094, Atten: NPODS.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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D6205 − 12
3.2.4 reference surface, Borco standard leather system, control polish/standard leather reference interface, n—working
interface of the set consisting of the white side of the Borcoconsisting of a dried film of control polish, applied according to th
...
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